Seiko Cal. 5640 - 128

This Hand-Winding model from 1985 features a 34mm Stainless Steel case. Powered by the 5640 caliber with 19j jewels beating at 21,600 bph, it delivers a 56 hours power reserve. [seikata-wm-2cad4bb6b22b]

Also known as: UFO

Specifications

Movement

Hand-Winding

Case Material

Stainless Steel

Case Width

34mm

Case Thickness

14.7mm

Lug Width

19mm

Crystal

Mineral

Bezel

Coin-Edge

Water Resistance

170m

Dial Color

Champagne

Jewels

19j

Frequency

21,600 bph

Power Reserve

56 hours

Year

1985

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